The following is a map unit description from the "Soil
Survey of Barnstable County, Massachusetts (Fletcher, 1993)"

SdA-Sudbury fine sandy loam, 0 to 3 percentslopes. This
very deep, nearly level, moderately well drained soil is in
depressions, swales, and low areas on outwash plains bordering
streams, ponds, and swamps. It makes up less than 0.1 percent (121
acres) of the survey area. It is mapped mainly in the Enfield-Merrimac-Carver
general soil map unit. Areas are irregular in shape and range
from 5 to 40 acres in size.

Typically, the surface layer is very dark grayish brown,
friable fine sandy loam about 1 0 inches thick. The subsoil is
yellowish brown, friable sandy loam about 20 inches thick. It is
mottled below a depth of 22 inches. The substratum extends to a
depth of 65 inches or more. It is mottled. The upper 6 inches is
strong brown, loose sand; the next 3 inches is light brownish
gray, friable loamy fine sand; the next 6 inches is brownish
yellow, loose sand; and the lower 20 inches is light yellowish
brown, loose gravelly coarse sand.

Included with this soil in mapping are small areas of
Amostown, Deerfield, Merrimac, and Pipestone soils. Also included
are small areas where the lower part of the subsoil is very fine
sandy loam. Included soils make up about 25 percent of this unit.

Permeability is moderately rapid in the subsoil of the Sudbury
soil and moderately rapid or rapid in the substratum. Available
water capacity is moderate. The seasonal high water table is at a
depth of 1.5 to 3.0 feet in late fall, in winter, in early
spring, and after periods of heavy precipitation.

Most areas are in open fields or support shrubby vegetation.
Some areas are wooded.

This soil is well suited to cultivated crops. Good tilth can
be easily maintained. Planting or harvesting may be delayed by
the seasonal high water table. A drainage system is needed for
maximum crop yields and the most efficient use of machinery.
Growing cover crops and including grasses and legumes in the
cropping system improve tilth. Mixing crop residue and manure
into the surface layer also improves tilth.

This soil is well suited to hay and pasture. The main
management objective is the prevention of overgrazing, which
reduces the hardiness and density of desirable plants and exposes
the soil to erosion. Proper stocking rates, timely grazing, and
restricted use during wet periods help to maintain plant density
and minimize surface compaction.

This soil is fairly well suited to woodland. No major hazards
or limitations restrict woodland management. Minimizing surface
disturbance helps to retain a spongelike mulch of leaves, which
absorb precipitation and maintain the limited moisture supply.
Removal or control of competing vegetation helps to obtain the
best growth of newly established seedlings. The most common trees
are pitch pine, red maple, eastern white pine, and white oak.

The seasonal high water table is a limitation if this soil is
used as a site for dwellings with or without basements or as a
site for septic tank absorption fields. Because of the moderately
rapid or rapid permeability in the substratum, the soil may not
adequately filter the effluent in septic tank absorption fields.
The poor filtering capacity may result in the pollution of ground
water. The hazard of pollution increases with the density of
housing. Additions of fill or a regional drainage system helps to
overcome the wetness.